The ruins of Ostrý Castle have been declared a cultural heritage. The castle was founded in the middle of the 13th century and from ca 1515 it was deserted. Nowadays, we can see only remains of the castle walls, from the top you will have beautiful views across the countryside.There are information boards on the history of the castle placed along the ascents to the ruins.

Go to the website ofFrantiškov nad Ploučnicí!